The Broadcom BCM94360CD PCI-E mini custom combo WLAN+Bluetooth card supports IEEE 802.11ac, the next standard in wireless computer networking.Interestingly, it also looks like it may fit in current iMacs/MacBooks which could mean aftermarket updates could be possible. Model: BCM94360CDWith Bluetooth 4.0Compatible with: 2013 21.5"/27" iMac